[PRQ#57834] Deletion Request for kradio

MarsSeed [1] filed a deletion request for kradio [2]: Abandoned on AUR since 2021. Reported broken on 2022-04-15 by @martynjy with the then-current KDE Plasma 5. No newer releases for 4+ years (last is 5.0.0-beta1, same as this PKGBUILD's pkgver). [a] Does not seem useful to keep any longer. [a]: https://sourceforge.net/projects/kradio/files/kradio/ [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/kradio/